Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

Because according to the evidence from the current investigation, it shows that the murderer has been present at the scene.

After the deceased Zhang Cuilian entered the car and died, the murderer opened the passenger door, took something from the glove box, most likely the cash Wang Chuanzhi put in the glove box, and then wiped the fingerprints on the passenger door handle .

In addition, the murderer also opened the trunk and took out a carbon monoxide generating device that might have been prepared in advance.

"Where's Chen Gang?"

Someone asked: "Where is the husband of the female victim?"

Zhang Hui shook his head: "Let's not talk about whether Chen Gang can get Wang Chuanzhi's car keys. He himself has been on a business trip in Tianzhou City and only came back this afternoon, and he has no time to commit the crime."

Chen Gang just returned to Haizhou City this afternoon.

After Zhang Hui finished chatting with the other party, he learned that he was doing some information system maintenance work for the public security system, and then contacted Tianzhou City to confirm Chen Gang's whereabouts.

Chen Gang left Haizhou City on the morning of the 11th and has been debugging the system in Tianzhou City since then.

According to the work plan, it should take three days to complete the debugging and then return to Haizhou.

Those who testified for him were Chen Gang's colleagues and several policemen from the police station there.

Judging from the results of Zhang Hui's investigation into Chen Gang, the possibility of the other party committing the crime was completely ruled out.

Because whether it was Lu Chuan's speculation that the murderer placed a carbon monoxide generating device in Wang Chuanzhi's trunk, causing the two to be poisoned, or some other reason, Chen Gang had an alibi.

And judging from the contact process between Zhang Hui and Chen Gang, the other party's reaction was either to his wife Zhang Cuilian or to himself.

Chen Gang probably didn't even know about the relationship between Zhang Cuilian and Wang Chuanzhi.

During the entire questioning process, he did not suspect at all that there was an extramarital affair between Zhang Cuilian and Wang Chuanzhi.

In Chen Gang's eyes, this seemed impossible.

During the case analysis meeting, everyone fell into silence.

According to past case handling experience, when people die in extramarital affairs, most of them are caused by the husband or wife of both parties.

However, judging from Zhang Hui's current investigation results, neither the wife nor the husband had time to commit the crime.

How did those two people die?
"Captain Qin, is it possible? I mean it's possible..."

Someone suddenly spoke, it was Chen Hao from the group: "Director Lu and the others found that the fingerprints on the passenger door handle were wiped off at the scene. Is it possible that someone passing by opened the door after noticing something was wrong in the car? And then took the money?"

"Just... just taking advantage of others?"

"Pull him down. He's stealing from the door of the family home of the Public Security Bureau? Impossible!"

Li Bing from Group 2 disagrees with this view.

"What happened at the gate of the Family Courtyard of the Public Security Bureau? Last year, an electric car was lost at the gate of our detachment, and no one was able to catch it."

"Can it be the same? Besides, when Director Lu and the others discovered that something was wrong that morning, the car door was locked."

"The car Wang Chuanzhi drove was an old Volkswagen sedan and did not have an automatic locking function."

"The two of them were probably already dead when the murderer struck. The deceased couldn't have locked the car door himself, so I think the murderer must be someone very close to Wang Chuanzhi, or at least the person who got his car keys."

"After cleaning up the crime scene, he locked the car door and left."

……

Everyone discussed the case analysis meeting for about two hours. At 3:00 in the morning, the case analysis meeting finally ended.

Judging from Zhang Cuilian's interpersonal relationships and interactions, there are no enemies or financial disputes.

There is basically no possibility that anyone wants to kill her.

Wang Chuanzhi's interpersonal relationships are relatively complicated.

It is the next key investigation target of the action team.

In addition, there is a comprehensive investigation of all relatives of Wang Chuanzhi.

After Lu Chuan returned to the field survey office, Yang Lin and Yang Sen were sleeping on the sofa.

The two of them were very busy today.

Lao Bai didn't work overtime and went home after 9 o'clock this evening.

He was about to retire and couldn't bear it any longer, so Lu Chuan didn't let anyone stay here. After lighting up a cigarette, Lu Chuan's mind was still full of the case.

Although there are no particularly clear directional clues in this case so far.

But Lu Chuan always felt that the murderer seemed to be around.

The other party seemed to be very cautious and wiped off the fingerprints on the passenger seat and the trunk lock.

But in fact it is full of loopholes.

Although the other party thought of hiding himself when cleaning up the traces, he ignored some common sense details.

That is, how could the murderer open Wang Chuanzhi's car lock as soon as he said so?

If you say lock it, lock it.

As someone said at the case analysis meeting, if the other party was not someone familiar to Wang Chuanzhi, how could he lock the car after erasing the fingerprints?

You know, when Lu Chuan and others discovered Wang Chuanzhi's body, the car keys were inserted in the key door.

Therefore, the murderer's process of committing the crime seems to be meticulous, but in fact it leaves many loopholes.

Careful, but also seems a bit naive.

After finishing the cigarette quickly, Lu Chuan twisted his stiff cervical vertebrae.

Forget it, stop thinking about it now and get some sleep before talking about it.

……

When Lu Chuan woke up again, it was already around nine o'clock the next morning.

"Are you awake? Xiao Yang made porridge for you. It's not cold yet. Get up and drink some."

Yang Sen seemed to have woken up early and had already started making tea.

The current investigation office was busier yesterday when the body was found.

It's much better now. The scene has been processed, the clues have been found, and the fingerprint identification has been completed. Basically, there is no more on-site investigation.

Lu Chuan stretched and rubbed his eyes.

"I'm going to wash my face."

The criminal investigation detachment in the morning was not noisy.

Most people didn't go to bed until four or five o'clock last night.

Today's main task is to investigate Wang Chuanzhi's interpersonal relationships.

"Director Lu, are you awake?"

Colleagues from the action team said hello, and Lu Chuan responded to them all.

When he was just promoted, it was not very familiar to everyone to call him Director Lu.

Everyone used to call him Xiao Lu.

It has only been a few days now, but I have become familiar with it by shouting.

"Where's Team Leader Zhang?"

"I took someone out. There seemed to be something new discovered last night. I went to check it out early in the morning."

Lu Chuan nodded and went to the toilet.

Sometimes the work of solving a crime requires not only looking at the evidence, but also really believing in a little inspiration.

Sometimes a case is puzzling for a long time, but by chance, an inspiration may lead to the key evidence being found, and the case is solved.

Lu Chuan was like this sometimes when doing fingerprint comparison.

For some particularly blurry fingerprints, it is sometimes very difficult to compare and analyze them solely with practical techniques.

It cannot be completed in one or two days.

But I can't tell you which day, when I was thinking about this fingerprint, I suddenly came up with the idea to adjust the marking points of the fingerprint, maybe the comparison would be successful. (End of chapter)